At the church I attend (Church of The King McAllen) we have BOTH. You we get to choose which one. I choose the wine. As much as I disagree with Kenneth Copeland I have to agree with him about something he said once "people that are sitting around arguing about should we be using wine for communion or grape juice ain't got any business taking PART in communion!"

I kind of have to agree on that.
This post represents a basic misunderstanding of the issue at hand. There are many that may be saying this in a more sophisticated way but they're saying essentially: this doesn't matter, if people want to use grape juice then those who want to argue against it are disputing over debatable matters.
First, debatable matters are things indifferent. God has not commanded one way or another so the Christian has liberty. I don't believe this issue can be boiled down so simplistically as if it were a matter indifferent (I'll elaborate).
Second, this debate usually ensues this way:
a. Some immature believer believes touching and tasting alchohol is a sin.
b. He wants to commune with others who have always celebrated communion with wine.
c. Because he is offended by it, he doesn't want to attend a Church that only serves wine and so will not fellowship with that Church.
d. Elders are concerned about losing people they would otherwise not and so they offer the option or change the wine wholesale to grape juice.
Exceptions to the rule are a bad way to form the case. The above is normally the way that these
discussions ensue. We're told by no less an authority than Kenneth Copeland that discussions about this are bad so the only thing left for those who are going to be the "mature party" in this is to let the element change without any discussion whatsoever.
Let me offer what I consider are the two most important things to consider in this debate:
1. If this is a matter of the Regulative Principle of Worship and the Sacrament was introduced with bread and wine (as the Passover always was) then to change the accidents of an element is no small matter.
2. Equally fundamental to this discussion is an extremely faulty view of the "weaker brother", Christian Libery, and Pharisaism. The weaker brother in Scripture is not the guy that has a conviction that eating jelly beans are sinful and so we all decide to stop eating jelly beans around John because "jellybeans are of the devil". The weaker brother is one who has a
Biblical scruple and is being overscrupulous in the matter. It is not just any scruple but it needs to have some warrant in the Scripture. For instance, God once commanded men not to eat the flesh of a pig, that law is abrogated but the man still holds that scruple. God has now given liberty to the man to eat pork but he refuses, personally, because he still holds that, for him, it is wrong to do so.
Now this overscrupulous man has two options for this scruple. He can quietly maintain this scruple for himself, not be offended by others who eat pork because he knows it's not wrong, and fellowship gladly with them without complaint. The other option to take is to be the Pharisee: to hold that because it is sinful for me that it is sinful for all and others are sinning by doing this around me. He withdraws from fellowship because the Gentiles keep bringing hog knuckles and fellowships only with other Pharisees who remain with him on this point.
Some may believe I'm being a little bit hard on this issue by bringing the term Pharisee into this discussion. Well, for those Jews that wanted to stay kosher,
at least they could provide a Scriptural warrant for doing so. That is, they had the whole of the Torah to get over and, because you don't
have to eat pork then you can live life quietly without bugging the guys next to you or, indeed,
enslaving them to a scruple they need not bear.
The person with a scruple against touching and tasting alchohol
has no Scriptural warrant whatsoever to undergird the conviction that even putting it to your lips is sin. Further, this conviction requires them to overthrow a command to commune with others in the Lord's Supper for the sake of a man-made conviction.
The
real reason I stand against movements to introduce grape juice usually bear little on the RPW. As an aside, I've never met a person who wants to insist upon grape juice that is much of a proponent for the RPW but that's a different matter. The real issue for me, in this matter, is that the person that wants it to happen is wanting it for all the wrong reasons. They're the guy with the jellybean conviction that wants everyone else to abstain. Why do they insist on grape juice? That's the question you have to ask. They insist, by and large, because religion is about eating and drinking, in their mind, and that's what defiles a man. The reason they want grape juice is for
un-Christian reasons. Now we can accommodate such people so we don't offend them or we can teach them.
While I'm being forthright here, I would normally want to
gently teach such a man and determine if he's actually teachable. Not every person that darkens the door of a Reformed Church, calling himself a Christian, really understands the Gospel. What better way to pinpoint a fundamental misunderstanding of the Gospel than at the point of believing that drinking is what defiles a man.
If you merely accommodate the scruple you not only never have to teach men to throw away vestiges of American revivalism but you give silent approval that maybe, just maybe, there is something wrong with alchohol after all. Perhaps those that have both grape and wine run less of a risk in this matter but those that switch completely to grape juice are endorsing this false American scruple whether they say they do or not. I just cannot understand the logic of those who believe it is acceptable for Christians to hang on to just a little bit of self-righteousness even if it's just a teensy-weensy bit of it.
Thus, it's pointless to squabble against those who hold that this is a matter of the RPW by trying to demonstrate to them that it's "the Cup" or "fruit of the vine". You need to look beyond that point as to why it is necessary to go the way of grape juice. You see, Paul would circumcise Timothy as long as it meant nothing regading acceptability before God but, as soon as circumcision was about being acceptable before God he withstood it as a denial of the Gospel. That's my position on grape juice.